a/ \(4FeS_2\left(\frac{388000}{11}\right)+11O_2\left(97000\right)\rightarrow2Fe_2O_3\left(\frac{194000}{11}\right)+8SO_2\left(\frac{776000}{11}\right)\)
\(m_{FeS_2}=5600000.0,75=4200000\)
\(\Rightarrow n_{FeS_2}=\frac{4200000}{120}=35000\)
\(n_{O_2}=\frac{3104000}{32}=97000\)
Ta thấy: \(\frac{35000}{4}>\frac{97000}{11}\) nên O2 phản ứng hết
\(m_{Fe_2O_3}=\frac{194000}{11}.160=2821818,18\)
b/ \(SO_2\left(\frac{776000}{11}\right)+Ca\left(OH\right)_2\rightarrow CaSO_3\left(\frac{776000}{11}\right)+H_2O\)
\(m_{CaSO_3}=\frac{776000}{11}.120=8465454,55\)